Sha算法 iOS

 

需要引用CommonDigest.h

 

-(NSString *) geteSHAEncryptedPaylod:(NSString *)message{

 

    const char *cStr = [message UTF8String]; 

    unsigned char result[CC_SHA1_DIGEST_LENGTH]; 

    CC_SHA1(cStr, strlen(cStr), result);

    NSString *s = [NSString stringWithFormat: @"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7], result[8], result[9], result[10], result[11], result[12], result[13], result[14], result[15], result[16], result[17], result[18], result[19] ]; 

    return [s lowercaseString];

}